Defaults
When we create an array, Java fills it with default values.
This is different than a local variable, which does not get a default value.
The default values for data types are listed below.
| Type | Default Value |
|---|---|
| int | 0 |
| double | 0.0 |
| char | \u0000 |
| boolean | false |
| objects | null |
\u0000is a unicode character, which we will explain later.Stringis an example of an object.
Practice Exercise¶
The array variable itself must be initialized before use, but when the array is instantiated the elements are given default values.